Fe/Ni Metal–Organic Frameworks and Their Binder-Free Thin Films for Efficient Oxygen Evolution with Low Overpotential

• DOI: 10.1021/acsami.6b05375
• Publication Date: 2016-06-14T15:46:22Z
• Authors: Lu Wang; Yizhen Wu; Rui Cao; Lantian Ren; Mingxing Chen; Xiao Feng; Junwen Zhou; Bo Wang
• Keywords: Overpotential; Oxygen evolution; Deposition

Multivariate metal-organic frameworks with active Fe/Ni building blocks that are spatially arranged in an open structure synthesized and explored for oxygen evolution reaction. The heterogeneity porosity of this system prove to show synergy effect give low onset overpotential at 170 mV. These MOFs further fabricated into thin films over nickel foam by controlled electrochemical deposition improve the surface conductivity overall stability. framework film exhibits outstanding electrocatalytic activity 270 mV 10 mA cm(-2), small Tafel slope, high Faradaic efficiency, turnover frequency, great